Spinning-spindle.



l No. 734,747!

N PATBNTED JULIk 2s, .1190s. .I I I. I. RABBBIII. f

SPINNING SPINDLE.

APPLICATION FILED FEB. 24 1903.

No MODEL.

@Evoi NTTED STATiJS Patented July 28, 1903.` PATENT Urrrcs.

FRANCIS J. RABBETH, OF REDLANDS, CALIFORNIA.

smNNlNe-sPlNDLi-z.

. SPECIFICATION forming part of Letters Patent N o. 734,747, dated July28, 1903.

Application filed February 24, 1,203. Serial No. 144.614. (No model.)

T all whom` 212'; may concern,.- i

Be it known thatl, FRANCIS J. RABBETHQ a citizen of the United States,residing at Redlands, county of Sani' Bernardino, State of California,have invented an Improvement inl Spinning-Spindles, of'which thefollowing description, in connection with the accompanying drawings, isa specification, like letters on the drawings representing like parts.

This invention relates to spinning-spindles of the live or rotatabletype; and it has for A practical and efficient bobbin-retaining deviceshould be simple, durable, and soconstructed that the empty bobbin maybe readily applied to the spindle and as readily removed therefrom ordoiied, while during the operation of laying yarn upon the bobbin the`latter should be iirmly retained upon the` `spindle without slip orlifting movement.

In my present invention I have constructed and produced novelbobbin-retaining means which conform to the foregoing requirements inall particulars, the bobbin being instantly and readily brought into orremovedfrom cooperative relation with such means andretained` firmly andsecurely in place thereby so long as the spindle continues to rotate.

' To this end the bobbin-retaining'means is 'so constructed and arrangedthat the centrif- -bin-clutching membersb are shown, each composed of anelongated body having a transugal force due to rotation of the spindleis utilized to cause said means to engage and firmly hold the bobbin inoperative position` -upon the spindle. The variousnovel features of myinvention will be describedin the subjoined specification, andparticularly pointed out in the following claims.

Figure lis a side elevation of a spindle and its `attached whirl withone embodiment of View thereof on the line 2 2, Fig. l, a bobbin beingshown in operative position on'the the line 3 3,` Fig. 2, looking down.

a side elevation of another form of bobbinlretaining means embodying myinvention.

Fig. 3 is a transverse section on Fig. 4 isy Fig. 5 is alongitudinalsection thereof on the line 5 5, Fig. 4. Fig. 6 is a side elevation ofthe whirl audits sleeve shown in Figs. 4 and 5, but with the movableclutching members omitted. Fig. 7 is a perspective view of one of theclutching members. Fig. 8 is a similar view of one of the members shownin Figs. l, 2, and 3; and Fig. 9 is a transverse section on the line 99, Fig. 5, looking down.

The rotatable spindle A ot' usual or Wellknown construction is hereinshown as having a rigidly-attached whirl W secured to or forming partrofthe lower end of a sleeve -W, secured at its upper end to the spindle ina manner familiar to those skilled in the art, the sleeve in practiceextending down outside the top of the bolster-case B; (See dotted lines,Fig. l.) A boss A is secured to the spindle near the upper end of thesleeve, and as shown in Figs. l, 2, and 5 the boss is cut out at itsvlower end to forman annular raceway a. An annular collar c, Figs. l, 2,and 3, surrounds the sleeve W above the whirl, the collar having anupturned peripheral flange CX, whereby an annular external raceway c ispresented between the flange and the sleeve.

VIn the embodiment of my invention which I now prefer the bobbinretaining or clutching means comprises outwardly or radially movablebobbin-engaging members arranged coaxially with the spindle and connedin proper position by the raceways.

Referring to Figs. l to 3, a plurality of bobversely-conveX contact orengaging face bx :and bent inward at its upper end, as at b',

with an upturned projection b2. The said members are loosely arrangedabout the sleeve W with their lower ends enteringloosely the raceway c',Whilethe upturned projections b2 yenter loosely theraceway a', asclearly shown in Fig. 2, the raceways being broad enough to permitconsiderable outward or radial movement of the clutching members whileserving to retain them in proper position.

From an inspection of Fig. Sit will-be seen that the body portion b of anclutching `member is V'concavo-convex in cross-section, to thereby itreadily around the sleeve.

The yarn receiver or bobbin E, Fig. 2, hav

ICO

' ing its bore cored outor enlarged at. its lower ends of adjacentclutching members.

end at Ex, as is common, is slipped onto the spindle, the clutchingmembers b readily entering the enlargement E and presenting a largecontact-surface to engage therewith.

When the Spindle is rotated at speed, the centrifugal force acts uponthe clutching members and moves them outward or radially away from thespindle and into firm engagement with the surrounding wall of thebobbin, and such engagement of the members with the bobbin clutches orholds the latter firmlyin place upon the spindle. The outward movementof the clutching members is limited by the outer walls of the raceways.In order to rotate the clutching members bodily with the spindle in apositive manner and also to maintain a proper clearance between themembers, I provide pins 10, Figs. l and 3, which are driven inwardradially from and through the ange cx, the inner ends of the' pinscrossing the vraceway between the lorvker e flange c serves as avertical support or rest for the lower end of the bobbin, positioning itproperly lengthwise of the spindle, and as the clutching members areprevented from lifting by the boss A( they in turn prevent lifting ofthe bobbin while yarn is being laid upon it. l

Manifestly when the spindle is at rest the clutching members will ceaseto exert anyy holding power upon the bobbin, and the latter can bedoffed instantly.

Should the spindle be rotating, a bobbin can be applied thereto bysimply pushing it down over the clutching members, as they will yield ormove inward as the enlargement EX passes down over the curved upper endsof the members. By holding the bobbin firmly in the hand the frictionalforce exerted by the clutching members can easily be overcome when thespindle is rotating if it is necessary to piece up a broken yarn.

It will be observed that no force is necessary to crowd or jam thebobbin down upon the retaining means, thereby obviating a very commondanger of splitting the bobbin.

In the modified form of my invention (shown in Figs. 4 to 7 and Fig. 9)the sleeve WX of the whirl WX has a series of longitudinal slots W2 toloosely receive the clutch members D, one of the latter being shownseparately in Fig. 7 and having an upturned projection d at its upperend to enter the upper raceway a. The clutch members D are also providedwith external substantially horizontal shoul- .ders dx to sustain thelower end of the bobi bin, as shown in Fig. 5, and the lower end of eachmember terminates in a depending foot or projection d. Such projectionsdenter loosely an annular groove or raceway wx, formed in the top of thewhirl WX, so that the upper and lower ends of the clutching members areconfined by upper and lower raceways carried by the spindle, while saidmembers D can move outward or radially a limited distance, as before,under the influence of centrifugal force to engage and hold the bobbinin operative position upon the spindle. In this form of my invention theportions of the whirl-sleeve between the slots W2 serve to separate theclutching members laterally and also effect the positive bodily rotationof said members with the spindle.

My invention is not restricted to the precise construction andarrangement herein shown and described, for so far as I am aware I amthe first to provide a sleeve-whirl spindle with bobbin-clutching meanscapable of being moved outwardly or away from the longitudinal axis ofthe spindle by or through the action of centrifugal force to operativelyengage and retain the bobbin in position and cause it to be rotated withthe spindle.

With either form of my invention herein shown it will 'be manifest thatthe bobbinclutching means move outward throughout their length, and thusthe engagement between the clutching means and the interior of thebobbin is. of ample character and very firm and effective, and anylongitudinal movement of the bobbin is prevented during rotation of thespindle.

Having described my invention, what I claim as new, and desire to secureby Letters Patent, is-

1. The combination with a spinning-spindle, of a sleeve secured at itsupper end theredle, of bobbin-clutching members having both their upperand lower extremities held loosely so as to be capable of a limitedoutward movement. v

4. The combination with a spinning-spindle provided with external,motion-limiting raceways, of bobbin-clutching members having both theirupper and lower ends loosely held within said raceways. I

5. A spindle having a boss and a sleevewhirl having a body, and aclutching member provided with a projection to engage said boss loosely.v

6. A spinning-spindle having in combination a whirl, a whirl-sleeve, andclutching members held loosely at both ends on the outside of saidwhirl-sleeve.

'7. A spinning-spindle having a rigidly-attached whirl, a plurality ofradially-movable and elongated bobbin-clutching members coaxial with thespindle and bodily rotatable IIO therewith, and means rotatable with thespindle to hold loosely the npper and lower ends .of said members whilepermitting limited radial movement thereof throughout their entireextent.

- 8. A spinning-spindle having a rigidly-attached Whirl, and providedwith a lower external raceway adjacent the whirl and an upper externalraceway, and a plurality of radially-movable bobbin-clutching memberscoaxial with the spindle and having their upper and lower ends looselyinserted in the raceways, to position and retain said members in placewhile permitting limited radial movement thereof.

9. A spinning-spindle having a boss, a whirl attached to the spindle andhaving an annular raceway in its top, and a clutching' member providedwith a projection to engage the boss loosely and having its lower endeX- tended loosely into the raceway.

l0. The combination with a spinningspin dle having an attached dependingsleeve provided at its lower end with a Whirl, of radially-movablebobbin-clutching members arranged about the sleeve coaxially with thespindle, and means on the bobbin-clutching members and located above thewhirl to vertically support the lower end of the bobbin. In `testimonywhereof I have signed my name to' this specication in the presence oftwo subscribing witnesses.

FRANCIS J. RABBETH. Witnesses:

WALTER M. CAMPBELL, EZRA CRossMAN.

